<template>
	<view>
		<view class="goods-list">
			<view v-for="(goods,i) in goodsList " :key="i" @click="gotoDetail(goods)">
				<my-goods :goods="goods"></my-goods>
			</view>
		</view>
	</view>
</template>

<script>
	export default {
		data() {
			return {
				//请求参数对象
				queryObj: {
					query: '',
					cid: '',
					pagenum: 1,
					pagesize: 10
				},
				goodsList: [],
				total: 0,
				//节流阀
				isloading:false
				
			};
		},
		onLoad(options) {
			// console.log(options);
			this.queryObj.query = options.query || ''
			this.queryObj.cid = options.cid || ''
			// console.log(this.queryObj);

			//获取商品列表数据
			this.getGoodsList()
		},
		methods: {
			//获取商品列表数据的方法
			async getGoodsList(cb) {
				this.isloading=true //打开节流阀
				const {
					data: res
				} = await uni.$http.get('/goods/search',this.queryObj)
				// 关闭节流阀
				this.isloading = false
				cb && cb()
				if(res.meta.status !==200) return uni.$showMsg()
				this.goodsList = [...this.goodsList,...res.message.goods]
				this.total = res.message.total
			},
			//跳转到详情页
			gotoDetail(goods){
				uni.navigateTo({
					url:'/subpkg/goods_detail/goods_detail?goods_id=' + goods.goods_id
				})
			}
		},
		//上拉加载更多的方法
		onReachBottom(){
			//提示数据
			if(this.queryObj.pagenum * this.queryObj.pagesize >= this.total) return uni.$showMsg('数据加载完毕')
			if(this.isloading) return
			//让页面值自增加1
			this.queryObj.pagenum++
			this.getGoodsList()
		},
		// 下拉刷新
		onPullDownRefresh(){
			//重置关键数据
			this.queryObj.pagenum = 1
			this.total = 0
			this.isloading = false
			this.goodsList = []
			
			//重新发起数据请求
			this.getGoodsList(()=>uni.stopPullDownRefresh())
		}
	}
</script>

<style lang="scss">

</style>
